Last Frost Day

Frost history / Creston 2 Sw, IA

Creston 2 Sw, IA: frost dates by year

Last spring and first fall frost at NOAA station USC00131962, 1951 to 2014, measured from daily minimum temperatures.

Elevation 1,296 ft, 41.037, -94.394. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 29Oct 6
EarliestApr 6 (1969)Sep 19 (1991)
LatestMay 22 (1963)Nov 5 (1998)
Trend1.2 days earlier per decadelittle change (less than half a day per decade)
Years with data5152

At 28°F (hard freeze) the median last spring date is Apr 14 and the median first fall date is Oct 20.

The trend is a straight-line fit through the years with a freeze. A positive spring trend means the last frost now comes later. Short or patchy records give noisy trends.

Chart

Last spring frost (32°F)

Mar 31Apr 15Apr 30May 15May 301960197019801990200020101952: May 111953: May 131954: May 91955: Apr 81956: Apr 301957: Apr 151958: Apr 291959: May 151960: May 11961: May 21963: May 221964: Apr 291965: Apr 281966: May 101967: May 31968: Apr 251969: Apr 61970: May 21971: May 21972: Apr 241976: May 31977: Apr 61978: May 21979: May 11980: May 81981: May 111982: Apr 211983: Apr 191984: Apr 231985: Apr 91986: Apr 221987: Apr 121989: May 61990: Apr 301991: Apr 101992: Apr 271993: Apr 211994: Apr 291995: Apr 271996: Apr 231997: May 131999: Apr 182002: Apr 222003: Apr 112004: May 32005: May 42006: Apr 92011: May 52012: Apr 122013: May 32014: May 16

First fall frost (32°F)

Sep 12Sep 27Oct 12Oct 27Nov 111960197019801990200020101951: Sep 281953: Oct 71954: Oct 181955: Oct 151956: Sep 301957: Oct 181958: Oct 11959: Oct 91960: Oct 191961: Sep 281962: Oct 231963: Oct 291964: Oct 51965: Sep 241966: Oct 11967: Sep 281968: Oct 41969: Oct 141970: Oct 101971: Oct 101972: Sep 301975: Oct 21977: Oct 121978: Oct 71979: Oct 51980: Oct 21981: Oct 21982: Oct 201983: Sep 211984: Sep 261985: Oct 11986: Oct 141987: Oct 31988: Oct 41989: Oct 71990: Oct 101991: Sep 191992: Oct 111993: Sep 291994: Oct 251995: Sep 221996: Oct 101998: Nov 51999: Sep 212000: Oct 62001: Oct 62002: Oct 72003: Sep 292005: Sep 292011: Oct 182012: Oct 62013: Oct 18

Dots are single years. The gray line is the median, the green line the fitted trend.

Year by year

YearLast spring 32°FFirst fall 32°FLast spring 28°FFirst fall 28°F
2014May 16no dataApr 16no data
2013May 3Oct 18Apr 25Oct 23
2012Apr 12Oct 6Apr 12Oct 6
2011May 5Oct 18May 4Oct 20
2006Apr 9no dataApr 8no data
2005May 4Sep 29Apr 25Oct 25
2004May 3no dataApr 14no data
2003Apr 11Sep 29Apr 10Nov 5
2002Apr 22Oct 7Apr 6Oct 13
2001no dataOct 6no dataOct 17
2000no dataOct 6no dataOct 6
1999Apr 18Sep 21Mar 27Oct 4
1998no dataNov 5no dataNov 6
1997May 13no dataApr 17no data
1996Apr 23Oct 10Apr 23Oct 31
1995Apr 27Sep 22Apr 5Sep 22
1994Apr 29Oct 25Apr 7Oct 25
1993Apr 21Sep 29Apr 2Oct 29
1992Apr 27Oct 11Apr 22Oct 17
1991Apr 10Sep 19Apr 10Sep 19
1990Apr 30Oct 10Apr 30Oct 25
1989May 6Oct 7Apr 13Oct 20
1988no dataOct 4no dataOct 26
1987Apr 12Oct 3Apr 4Oct 11
1986Apr 22Oct 14Apr 22Oct 14
1985Apr 9Oct 1Apr 9Oct 1
1984Apr 23Sep 26Apr 6Sep 26
1983Apr 19Sep 21Apr 19Nov 11
1982Apr 21Oct 20Apr 20Oct 21
1981May 11Oct 2May 11Oct 18
1980May 8Oct 2May 8Oct 2
1979May 1Oct 5Apr 28Oct 13
1978May 2Oct 7Mar 26Nov 14
1977Apr 6Oct 12Apr 6Nov 9
1976May 3no dataMay 3no data
1975no dataOct 2no dataOct 25
1972Apr 24Sep 30Apr 8Oct 19
1971May 2Oct 10Apr 6Oct 31
1970May 2Oct 10Apr 4Nov 1
1969Apr 6Oct 14Mar 31Oct 14
1968Apr 25Oct 4Apr 5Oct 4
1967May 3Sep 28May 2Oct 11
1966May 10Oct 1Apr 28Oct 30
1965Apr 28Sep 24Apr 28Oct 24
1964Apr 29Oct 5Apr 9Oct 9
1963May 22Oct 29Apr 4Oct 29
1962no dataOct 23no dataOct 24
1961May 2Sep 28May 2Oct 20
1960May 1Oct 19Apr 10Oct 19
1959May 15Oct 9Apr 22Oct 12
1958Apr 29Oct 1Apr 29Oct 1
1957Apr 15Oct 18Apr 14Oct 25
1956Apr 30Sep 30Apr 24Nov 8
1955Apr 8Oct 15Apr 7Oct 24
1954May 9Oct 18May 4Oct 31
1953May 13Oct 7Apr 20Oct 27
1952May 11no dataApr 15no data
1951no dataSep 28no dataSep 28

"none" means the station recorded no freeze at that threshold in that half of the year. "no data" means more than 10% of the season's daily readings were missing. Years with no usable data are left out. See the methodology for the rules, and the ZIP lookup for 1991 to 2020 frost probabilities.